Improvement in combined pumps and condensers for steam-engines



l C. D. FARCIUT. Combined Pumps and Condensers for Stem-iEngines.

Patented June I6, 187,4.

y Qxcwkb @wilg-1D UNrriD "STATES PATENT OFFICE.

CHARLES O. FARCIOT, OF SAN FRANCISCO, CALIFORNIA.

IMPROVEMENT IN COMBINED PUMPS AND CONDENSERS FOR STEAM-ENGINES.

Specification forming part of Letters Patent No. 152,095, dated June 16,1874; application filed April 13, 1874.

To all whom 'it may concern:

Be it known that I, CHARLES 0. Fancior, of San Francisco, in the countyof San Francisco and State of California, have invented certain new anduseful Improvements in Combined Pump and Condenser; and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, and to thelet ters of reference marked thereon, which form a part of thisspecification.

The nature of my invention consists in the construction and arrangementof a combined pump and condenser for'high-pressure steamengines, theobject of which is to save fuel and water by partiallyY condensing theeX- haust steam, and returning the water to the boiler at 'a hightemperature, as will be hereinafter more fully set forth.

In order to ena-ble others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in which-Figure l is a side elevation, and Fig. 2 a longitudinal verticalsection, of my invention.

A represents the pumpcylinder, of any suitable dimensions, closed at itslower end, and provided near said end, on one side, with a pipe, B,through which the water is forced from the pump into the boiler. In thispipe is a valve, a, of suitable construction, to prevent the return ofthe water to the pump. The upper end of the pump-cylinder A and thepiston or plunger fits therein. b b are the inlet-openings in the upperend of the cylinder. Around the outside of the cylinder A, a shortdistance below the inlet-openings, is a circumferential ange, d. Uponthe iiange d is secured a cylindrical casing, D, the inner diameter` ofwhich is suiiiciently larger than the outside diameter of thepumpcylinder to allow free access of the water between said casing andthe upper end of the pump-cylinder to pass into the inlet-openings b b.Both ends of the casing D are `flanged, as shown, and on the upper endis secured a cap, E, by bolts through suitable flanges on both cap andcylinder. G and G' represent two conical shells, placed one within theother, and having a space, c, between them, which is closed at bothends, as shown. Around the upper ends of the shells Gr G are flanges,which are placed between the upper end of the cylinder D and the cap E,and fastened by the same bolts which fasten said parts together. Theinner shell G is perforated by a number of small holes, as shown in Fig.2. H is the inlet-pipe for water, which pipe passes through the casin gD, and into the outer conical shell G', to admit the water into theconical space e, from which it passes through the perforations in theinner shell Gr, andas soon as it emerges Atherefrom it is immediatelyacted upon by the exhaust steam from the engine, which enters through apipe, I, in the cap E.

The water is thus heated by the exhaust steam, and the exhaust steam ispartially condensed by its contact with the water, and, with the water,returned to the boiler by the action of the pump-plunger C in thecylinder A, said plunger being operated by either crank-motion or asteam-cylinder connected with the plunger-rodf.

J is the outlet for that portion of the eX haust steam not condensed.

By this construction of the pump there is no danger of the pump notworking, no matter what temperature the water is. EXplosions aresometimes caused by pumps heating from packing or vapor caused by thefeed-water being too warm, which prevents the pumps from working. Thisdifficulty is entirely obviated by my construction of ,the

y pump.

O11 the side of the casing D is an ordinary glass water-gage, L, to showthe height ofthe water therein, so that it can be regulated to a niccty.This pump requires no suction-valve or packing, and will not leak.

Itis cheaper and more effective than the devices now generally used, andlessens the power required to force the exhaust steam through longpipes.

Having' thus lnll)v described in y invention, what I claim as new, :inddesire to Secure by Letters Patent, isn

1. The conical shells G l', arranged as described, one within the other,forming the wnterchalnber c, from which the water passes throughpertorations in the inner shell G, and is acted on by the exhaust steamadmitted from above, substantially as and for the purposes herein setforth.

2. In n force-pump requiring,` no suction- Valve for boilers, thecombination ofthe pumpeylinder A, with inlet@` b mld outlets Il, theplunger C, and casing D, with carp E, all constructed substantially :isand forth@ 'purposes herein set forth.

In testimony that l claim the foregoing as my own, I affix my signaturein presence ot' two witnesses.

UHAS. O. FARCIOT.

\Vitnesses:

K SAML. HERMANN, ALEX. EDOUARD.

